Hiring: Principal Battery Systems Engineer Company: ON.energy Location: Miami, FL Job Posted Time: 2026-09-17 13:02:34 Target Skills & Keywords : AutoCAD, CAD, Product Lifecycle Management About the job Experience: •10+ years of hands-on engineering experience in BESS, power electronics, UPS, or comparable mission-critical industrial power systems, with a demonstrated record of operating with minimal direction in a senior technical role. Required Skills: •Set the architecture for the BESS product line and own the technical roadmap across multiple concurrent product cycles. •Make the hard trade-off calls — cost vs reliability, performance vs lead time, standardization vs customization — and document the reasoning so future decisions inherit context. •Define the engineering standards, design rules, and review gates that other engineers on the team work to. Own the product-engineering bar. •Approve major design changes; act as the final technical authority on the change baseline. •Multi-Product Development •Run multiple product development cycles in parallel — concept through prototype, FAT, field deployment, and revision — without losing depth on any of them. •Drive cycle cadence: decide what ships when, where the technical risk lives, what gets parallelized vs sequenced. •Identify and execute the next-generation product moves — higher voltage class, alternate chemistries, new form factors — ahead of customer demand. Qualifications: •Bachelor's degree in Electrical Engineering, Power Electronics, or a closely related technical field. MS preferred. •Owned multiple product development cycles end-to-end and independently. You've personally designed and integrated a BESS at the system level, from engineering through commissioning and into live operation, not just handed it off at FAT, and the products are still in the field. •Architecture-level decision authority on previous BESS equipment. You've made the trade-off calls others built around, not just executed someone else's architecture. •Deep, demonstrable skill in detailed component sizing — fuse coordination, busbar sizing, protection device selection, thermal sizing for enclosed cabinets — at the level required to sign off on production designs. •Fluency producing and reviewing SLDs, GAs, schematics, and panel layouts; expert with AutoCAD or equivalent E-CAD; comfortable across mechanical drawings. •Strong track record running strategic vendor relationships through design, FAT, serial production, and post-deployment escalation. •Excellent written and verbal communication — specs, technical positions, design review leadership, board-level briefings. •Willing to travel up to 25–30% for FAT inspections, site commissioning, customer engagements, and vendor reviews. •Direct experience with data center / UPS / mission-critical power or utility-scale BESS at the architecture level. •Active involvement in standards bodies (UL, IEC, NFPA, IEEE working groups, CSA TC committees) or technical conference contributions. Compensation: •Competitive salary + annual performance-based bonus eligibility Interested candidates, please apply directly through the job posting on company's career page or try via AI auto apply on this platform. Don't miss this opportunity to join a forward-thinking team!